I actually very rarely have that reaction. It often takes me quite a long period of reflection and thinking before I end up truly falling in love with a story after I finish it. Although that then ends in quite an extreme degree of appreciation. I still find myself periodically going back to thinking about my favorites and being in awe at how amazing they are, and it's been a long time since I last read them.

Last I remember getting a 'void' would be CLANNAD After Story, but it wasn't in epicness but rather in emotional investment. It made me unable to feel sad about anything else for a month or so. Even 12 Years a Slave left me cold.